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aspeed: add some I2C devices to the Aspeed machines 

Let's add an RTC to the palmetto BMC and a LM75 temperature sensor to
the AST2500 EVB to start with.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1494827476-1487-5-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Cédric Le Goater 2017-06-02 11:51:49 +01:00 committed by Peter Maydell
parent 4960f084cf
commit 2cf6cb500c
1 changed files with 27 additions and 0 deletions
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27
hw/arm/aspeed.c
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@ -39,6 +39,7 @@ typedef struct AspeedBoardConfig {
const char *fmc_model; const char *fmc_model;
const char *spi_model; const char *spi_model;
uint32_t num_cs; uint32_t num_cs;
void (*i2c_init)(AspeedBoardState *bmc);
} AspeedBoardConfig; } AspeedBoardConfig;
enum { enum {
@ -82,6 +83,9 @@ enum {
SCU_AST2500_HW_STRAP_ACPI_ENABLE | \ SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER)) SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
static void palmetto_bmc_i2c_init(AspeedBoardState *bmc);
static void ast2500_evb_i2c_init(AspeedBoardState *bmc);
static const AspeedBoardConfig aspeed_boards[] = { static const AspeedBoardConfig aspeed_boards[] = {
[PALMETTO_BMC] = { [PALMETTO_BMC] = {
.soc_name = "ast2400-a1", .soc_name = "ast2400-a1",
@ -89,6 +93,7 @@ static const AspeedBoardConfig aspeed_boards[] = {
.fmc_model = "n25q256a", .fmc_model = "n25q256a",
.spi_model = "mx25l25635e", .spi_model = "mx25l25635e",
.num_cs = 1, .num_cs = 1,
.i2c_init = palmetto_bmc_i2c_init,
}, },
[AST2500_EVB] = { [AST2500_EVB] = {
.soc_name = "ast2500-a1", .soc_name = "ast2500-a1",
@ -96,6 +101,7 @@ static const AspeedBoardConfig aspeed_boards[] = {
.fmc_model = "n25q256a", .fmc_model = "n25q256a",
.spi_model = "mx25l25635e", .spi_model = "mx25l25635e",
.num_cs = 1, .num_cs = 1,
.i2c_init = ast2500_evb_i2c_init,
}, },
[ROMULUS_BMC] = { [ROMULUS_BMC] = {
.soc_name = "ast2500-a1", .soc_name = "ast2500-a1",
@ -223,9 +229,22 @@ static void aspeed_board_init(MachineState *machine,
aspeed_board_binfo.ram_size = ram_size; aspeed_board_binfo.ram_size = ram_size;
aspeed_board_binfo.loader_start = sc->info->sdram_base; aspeed_board_binfo.loader_start = sc->info->sdram_base;
if (cfg->i2c_init) {
cfg->i2c_init(bmc);
}
arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo); arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
} }
static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
/* The palmetto platform expects a ds3231 RTC but a ds1338 is
* enough to provide basic RTC features. Alarms will be missing */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
}
static void palmetto_bmc_init(MachineState *machine) static void palmetto_bmc_init(MachineState *machine)
{ {
aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]); aspeed_board_init(machine, &aspeed_boards[PALMETTO_BMC]);
@ -250,6 +269,14 @@ static const TypeInfo palmetto_bmc_type = {
.class_init = palmetto_bmc_class_init, .class_init = palmetto_bmc_class_init,
}; };
static void ast2500_evb_i2c_init(AspeedBoardState *bmc)
{
AspeedSoCState *soc = &bmc->soc;
/* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x4d);
}
static void ast2500_evb_init(MachineState *machine) static void ast2500_evb_init(MachineState *machine)
{ {
aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]); aspeed_board_init(machine, &aspeed_boards[AST2500_EVB]);